Mounting of cathode-ray tubes for television reception



M. J- MORRIS June 23, 1953- MOUNTING OF CATHODE-RAY TUBES FOR TELEVISIONRECEPTION Filed July 21, 1950 2 Sheets-Sheet l flllllllil.

" INVENTOR. MneaA/ J. Mame/s M. J. MORRIS June 23, 1953 MOUNTING OFCATHODE-RAY TUBES FOR TELEVISION RECEPTION Filed July 21, 1950 INVENTOR.

2 Sheets-Sheet 2 ArmkA y Patented June 23, 1953 MOUNTING'OF CATHODE-RAYTUBES FOR :TELEVISION RECEPTION Myron J. Morris, Yonkers, N. Y.,assignor to Tele King Corporation, a corporation of New York ApplicationJuly 21, 1950, Serial N 0. 175,216

This invention relates to a cathode ray tube mounting and morespecifically to the mounting of a cathode ray tube in a televisionreceiver.

One of the difiiculties in present-day manufacture of televisionreceivers on a mass production scale is the adaptation of a giventelevision chassis to different types and sizes of cathode ray tube orkinescope.

One of the objects of the invention is a telescope mounting for the neckof the cathode ray tube, which is supported on the top of a chassis topermit horizontal as well as vertical adjustment corresponding tocathode ray tubes of different diameters and diiferent lengths of neck.

Another object of this invention is a neck support for a cathode raytube which is hollow so as to provide electric screening for circuitelements arranged therein in order to save space on the top of thechassis.

Still another object of the invention is an arrangement of hollow sheetmetal elements disposed telescopically, forming an adjustable supportfor the neck of a cathode ray tube and open on one side to permitplacement of circuit elements therein.

A further and more specific object of the invention is a telescopicmounting arranged to form a support for the neck of a cathode ray tubemounted on the rear side of a chassis, adjustable in height, while thescreen carrying front portion of the cathode ray tube is mounted inrelative fixed position on the front side of the chassis.

A more specific object of the invention is to support or enclose atleast partially in the top element of a telescopic neck mount thedeflection elements of the cathode ray tube such as magnetic coils,while the bottom element encloses at least partially certain circuitelements supported on the chassis and electrically screened from certainother circuit elements arranged on the chassis.

Still another object of the invention is a mounting system which permitsthe alternative mounting of quadrangular and round type cathode raytubes on one and the same chassis.

These and other objects of the invention will be more fully apparentfrom the drawings enclosed herewith in which Figures 1 and 2 representfront and side views, respectively, of a cathode ray tube mountingembodying certain features of the invention; Figures 3 and 4 arecorresponding top and rear views.

In Figures 1, 2, 3, and 4, part I represents a cathode ray tube ofquadrangular type. The

1 Claim. (Cl. 340-367) front section 2 of tube I is mounted on rubbercushion 3 and supported on a bridge portion 5 of sheet metal or thelike, which in turn is attached to a metal chassis 6 containing circuitelements arranged inside and outside thereof in a manner well known inthe art.

The neck portion 1 of tube l is surrounded by a deflection coil system 8which is adjustably mounted at points schematically indicated in Figure4 at 9, 10, 11, and in a manner immaterial for the invention, onsupporting plate I2, which in turn is attached to the flanges of a Ucross section outer telescope top member I3, which is adjustably placedover and attached to another inner telescopic bottom member consistingof sheet metal flaps l4, I5 having flanges attached to the top I8 ofchassis 6 by screws or in any other appropriate manner. In this way, itis possible to adapt the height of the upper telescopic support I3 tonecks of cathode ray tubes of different heights and at the same time toadjust the horizontal position of the lower telescopic supports I4, I5along the top I8 of chassis 6 to tube necks of different lengths withoutbeing required to change the chassis and the system of mounting.

The invention also permits of placing a round type cathode ray tube onchassis 6. This is made possible by the provision of angular metalpieces I9, 20 (Figure 1), under bridge 5, which are welded, riveted, orotherwise permanently attached to metal top I8.

By inserting rubber cushions as schematically indicated in dotted linesat 2|, 22, a round type cathode ray tube will be supported on chassis 6,as schematically indicated at 23, without substantially changing theconstruction of the chas- SIS.

The telescoping members l3, I4, and I5 form a hollow structure in orderto permit the placing therein of circuit elements such as tubes orcondensers schematically indicated at 23, 24, and 25 in Figure 1. Thisis to save space on the top I8 of chassis 6, and also to affordelectrical protection for elements 23, 24, and 25 by the screeningaction of the metal wall formed by the lower telescope members I4, I5.

In order better to fix the relative position in height of members l3,I4, I5, the side flaps of I3 are provided with inward dimples '26fitting into any one of pairs of holes or receivers 21 (Figure 2) ofside walls I4, l5. Connections 26, 2! permit accurate setting ofU-shaped member I3 on side walls I4, I5, after which member I3 may bepermanently attached to side walls l4, l5 by screws connecting flanges28 to defiection support plate 12 or in any other appropriate manner.

Attachment of the front part 2 of tube is secured by a flexible band 29extending over the top of tube front 2 and attached with its ends to thesides of bridge 5. The neck portion of tube I is supported on andprotected by a conical rubber sleeve 30 supported in a front opening oftop telescope member 13.

The invention, of course, is also applicable to the mounting of cathoderay tubes for radar purposes and generally to any other types orelectronic discharge tube Without exceeding the scope of this invention.

I claim:

In a cathode ray tube supporting structure for a television receiver, achassis and a pair of telescoping members, one supported on the chassisand the other supported on the first one in several verticallyadjustable positions for supporting the cathode ray tube at adjustableheights, said chassis at its front portion having permanently attachedthereto angular ele' ments permitting support of a round screen cathoderay tube, and a bridge element extending over said angular elements andalso attached to said chassis at the sides thereof for supporting aquadrangular screen cathode ray tube, said first telescoping memberbeing also adjustable along said chassis in a horizontal direction.

MYRO-N J. MORRIS.

References Citedin the file of this patent UNITED STATES PATENTS

